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US 2021/0340764 A1Published application
Construction panel
AssigneeHEKA graphit.technology GmbH
InventorsJens Düwel, Hennes Röseler
Life of this patent
Estimating the term…
Abstract
A construction panel contains at least one insulation layer, at least one active thermal layer containing at least an electrical heating and/or an electrical cooling element, and a connector for connecting the at least one active thermal layer to a source of electrical current. The active thermal layer is preferably an active heating or cooling layer.
Claims16
1-15. (canceled)
16:
- A construction panel, comprising:
- at least one insulation layer, said at least one insulation layer comprising an electrically insulating sheet, an electrically insulating web, or an electrically insulating paper;
- at least one active thermal layer manufactured using printing techniques, said at least one active thermal layer comprising at least an electrical heating element and/or an electrical cooling element, wherein said electrical heating element and/or electrical cooling element comprises one or more electrically conductive layers;
- and
- a connector means for connecting said at least one active thermal layer to a source of electrical current.
2 more elements
17:
- The construction panel according to claim 16, wherein said at least one insulation layer comprises a foam made from a foaming first siliceous-based polyurea composition obtained by reacting ingredients comprising a polyisocyanate and an aqueous silicate, and
- wherein said at least one insulation layer comprises a stabilizing material.
18:
- The construction panel according to claim 17, wherein said stabilizing material comprises a resin obtained from a non-foaming second siliceous-based polyurea composition, obtained by reacting ingredients comprising a polyisocyanate and an aqueous silicate,
- wherein said non-foaming second siliceous-based polyurea composition has a higher concentration of said aqueous silicate than a concentration of aqueous silicate in said foaming first siliceous-based polyurea composition.
19:
- The construction panel according to claim 16, wherein said at least one insulation layer comprises a rigid foam made from a polystyrene composition and a stabilizing material.
20:
- The construction panel according to claim 19, wherein said stabilizing material comprises two-dimensional or three-dimensional fabrics made of at least one of glass, carbon, basalt, and aramid fibers.
21:
- The construction panel according to claim 16, wherein said at least one insulation layer comprises an inorganic filler material.
22:
- The construction panel according to claim 21, wherein said inorganic filler material comprises one or more of silicon-dioxide microspheres, granules, or fibers.
23:
- The construction panel according to claim 16, wherein said electrically conductive layers comprise one or more layers made from a metal sheet or metal mesh.
24:
- The construction panel according to claim 16, wherein said electrically conductive layers comprise one or more layers made from a two-dimensional semi-conductor.
25:
- The construction panel according to claim 16, wherein said electrically conductive layers comprise one or more layers of graphite dispersed in a binder,
- wherein the electrically conductive layers comprise from 30 to 96% by weight of graphite, from 4 to 30% by weight of the binder, and from 0 to 40% by weight of functional additives.
26:
- The construction panel according to claim 16, wherein said electrically conductive layers comprise printed patterns.
27:
- The construction panel according to claim 16, wherein said at least one insulation layer and/or said at least one active thermal layer comprises bonding enhancers.
28:
- The construction panel according to claim 16, wherein said electrical heating element and/or electrical cooling element comprises a peltier element layer.
29:
- The construction panel according to claim 16, wherein said at least one active thermal layer comprises tubes for a cooling fluid, arranged in grooves provided on a surface of said at least one insulation layer, and a thermally conductive plate arranged on said grooves, wherein the thermally conductive plate is in thermal contact with said tubes.
30:
- The construction panel according to claim 25, wherein the binder is an acrylate binder.